8969217681280 has 128 divisors (see below), whose sum is σ = 22322706732000. Its totient is φ = 3441909080064.

The previous prime is 8969217681247. The next prime is 8969217681283. The reversal of 8969217681280 is 821867129698.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8969217681283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1374891 + ... + 4452949.

Almost surely, 2^{8969217681280} is an apocalyptic number.

8969217681280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8969217681280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11161353366000).

8969217681280 is an abundant number, since it is smaller than the sum of its proper divisors (13353489050720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8969217681280 is a wasteful number, since it uses less digits than its factorization.

8969217681280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3078264 (or 3078252 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 67.

The spelling of 8969217681280 in words is "eight trillion, nine hundred sixty-nine billion, two hundred seventeen million, six hundred eighty-one thousand, two hundred eighty".